Users also have the ability to browse profiles outside their daily matches.
In general, Tinder users reported less satisfaction with their bodies and looks than non-users, study author Jessica Strübel wrote.
The app will then produce nearby matches -- possibly even down your street or across the bar -- fitting your search criteria. Ok Cupid is a free dating site and mobile app that crunches users' answers to a series of questions (Are you messy? Match, one of the first and largest dating sites, also has a mobile app.
Users swipe right if they're interested and left if they want to reject the match. The formula is pretty standard: Users fill out a profile, and the app will send them daily matches that meet their standards.